Analysis

  • max time kernel
    148s
  • max time network
    151s
  • platform
    windows10-2004_x64
  • resource
    win10v2004-20241007-en
  • resource tags

    arch:x64arch:x86image:win10v2004-20241007-enlocale:en-usos:windows10-2004-x64system
  • submitted
    30-12-2024 01:06

General

  • Target

    cc07c1906162fbeb46c77125d3b0bcc61824c4957cb42225ba2589d70574a134.exe

  • Size

    840KB

  • MD5

    8782eb20d30063d16cb1a863abde53bf

  • SHA1

    a2ea52cb1a34e50dfea8a1c15036f1331b19059b

  • SHA256

    cc07c1906162fbeb46c77125d3b0bcc61824c4957cb42225ba2589d70574a134

  • SHA512

    a5921c215d8e0c6f9b6febe247643db5c97c611b6c52b5ba3ec4c44a6aee2903496b9ae968cc7e5819c404680752b944309a9b53fc80426c939009c7a11ae453

  • SSDEEP

    24576:6p3S04YNEMuExDiU6E5R9s8xY/2l/dNN1Ibt+rI:6pt4auS+UjfU2TL1Ibt+r

Malware Config

Extracted

Family

orcus

C2

/week-twice.gl.at.ply.gg

Mutex

d64295ec31d4429abd23cb369544a4e0

Attributes
  • administration_rights_required

    false

  • anti_debugger

    false

  • anti_tcp_analyzer

    false

  • antivm

    false

  • autostart_method

    1

  • change_creation_date

    false

  • force_installer_administrator_privileges

    false

  • hide_file

    false

  • install

    false

  • installation_folder

    %appdata%\Microsoft\Speech\AudioDriver.exe

  • installservice

    false

  • keylogger_enabled

    false

  • newcreationdate

    12/29/2024 00:26:48

  • plugins

    AgEAAA==

  • reconnect_delay

    10000

  • registry_autostart_keyname

    Audio HD Driver

  • registry_hidden_autostart

    false

  • set_admin_flag

    false

  • tasksch_name

    Audio HD Driver

  • tasksch_request_highest_privileges

    false

  • try_other_autostart_onfail

    false

aes.plain

Signatures

  • Orcus

    Orcus is a Remote Access Trojan that is being sold on underground forums.

  • Orcus family
  • Checks computer location settings 2 TTPs 1 IoCs

    Looks up country code configured in the registry, likely geofence.

  • Executes dropped EXE 1 IoCs
  • Enumerates physical storage devices 1 TTPs

    Attempts to interact with connected storage/optical drive(s).

  • System Location Discovery: System Language Discovery 1 TTPs 2 IoCs

    Attempt gather information about the system language of a victim in order to infer the geographical location of that host.

  • Suspicious behavior: EnumeratesProcesses 36 IoCs
  • Suspicious use of AdjustPrivilegeToken 1 IoCs
  • Suspicious use of WriteProcessMemory 3 IoCs

Processes

  • C:\Users\Admin\AppData\Local\Temp\cc07c1906162fbeb46c77125d3b0bcc61824c4957cb42225ba2589d70574a134.exe
    "C:\Users\Admin\AppData\Local\Temp\cc07c1906162fbeb46c77125d3b0bcc61824c4957cb42225ba2589d70574a134.exe"
    1⤵
    • Checks computer location settings
    • System Location Discovery: System Language Discovery
    • Suspicious use of WriteProcessMemory
    PID:4864
    • C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe
      "C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe"
      2⤵
      • Executes dropped EXE
      • System Location Discovery: System Language Discovery
      • Suspicious behavior: EnumeratesProcesses
      • Suspicious use of AdjustPrivilegeToken
      PID:3480

Network

MITRE ATT&CK Enterprise v15

Replay Monitor

Loading Replay Monitor...

Downloads

  • C:\Users\Admin\AppData\Roaming\Microsoft\Speech\AudioDriver.exe

    Filesize

    840KB

    MD5

    8782eb20d30063d16cb1a863abde53bf

    SHA1

    a2ea52cb1a34e50dfea8a1c15036f1331b19059b

    SHA256

    cc07c1906162fbeb46c77125d3b0bcc61824c4957cb42225ba2589d70574a134

    SHA512

    a5921c215d8e0c6f9b6febe247643db5c97c611b6c52b5ba3ec4c44a6aee2903496b9ae968cc7e5819c404680752b944309a9b53fc80426c939009c7a11ae453

  • memory/3480-24-0x0000000006130000-0x00000000062F2000-memory.dmp

    Filesize

    1.8MB

  • memory/3480-22-0x0000000074920000-0x00000000750D0000-memory.dmp

    Filesize

    7.7MB

  • memory/3480-27-0x0000000074920000-0x00000000750D0000-memory.dmp

    Filesize

    7.7MB

  • memory/3480-26-0x0000000006100000-0x000000000610A000-memory.dmp

    Filesize

    40KB

  • memory/3480-25-0x0000000005900000-0x0000000005910000-memory.dmp

    Filesize

    64KB

  • memory/3480-23-0x0000000074920000-0x00000000750D0000-memory.dmp

    Filesize

    7.7MB

  • memory/4864-5-0x0000000005D80000-0x0000000005E12000-memory.dmp

    Filesize

    584KB

  • memory/4864-21-0x0000000074920000-0x00000000750D0000-memory.dmp

    Filesize

    7.7MB

  • memory/4864-9-0x0000000005E30000-0x0000000005E7E000-memory.dmp

    Filesize

    312KB

  • memory/4864-2-0x0000000005870000-0x000000000587A000-memory.dmp

    Filesize

    40KB

  • memory/4864-6-0x0000000005CF0000-0x0000000005D3C000-memory.dmp

    Filesize

    304KB

  • memory/4864-0-0x000000007492E000-0x000000007492F000-memory.dmp

    Filesize

    4KB

  • memory/4864-1-0x0000000000E40000-0x0000000000F18000-memory.dmp

    Filesize

    864KB

  • memory/4864-4-0x0000000005E90000-0x0000000006434000-memory.dmp

    Filesize

    5.6MB

  • memory/4864-3-0x0000000074920000-0x00000000750D0000-memory.dmp

    Filesize

    7.7MB